Answer:
Really good book, by the way... Please mark Brainliest.. But, here's your answer
1. Pushed on board a train with many people without food and with limited water.
2. Thrown food by the Nazis so that they would fight over the bread.
3. They were separated one by one based on their physical attributes and their gender.
Being shoved into a train with many other people without food for a long journey can feel very dehumanizing, as it is cruel to do to even an animal, yet it was done to all of them. It had a big impact on Ellie, as he even states that he still vividly remembers the people in the train, curled up, people bullying others for food, and starving them. Even as young as he was when he experienced it, he still remembers the smell of the burning bodies at the concentration camp and the pain people were going through.
When the Nazis were throwing bread at the Jews on board the train, it impacted Ellie as he saw people being killed, just so they could steal the bread from them. Even while this was happening, the Nazis were laughing at them and throwing bread at them like animals at a zoo.
Lastly, being separated from other people can be dehumanizing, when a strong man is separated into a "better" category, just because he can do more than you. All women and children who were incapable of doing as much as the Nazis wanted were sent to showers to be gassed to death; they were ruthlessly killed and everybody in the camp knew it. That was one item that Ellie remembered very well even being the age that he was.
